PSA 10.5" 5.56 NATO 1/7 Nitride 9" Lightweight M-Lok Classic SBA3 Pistol Kit - 5165450475

Barrel: 10.5" 4150V Chrome Moly vanadium steel, nitride treated for durability and chambered in 5.56 NATO with a 1 in 7" twist. Carbine length gas barrel is finished off with a PSA Lightweight 9" M-lok Rail, a low profile gas block, and a PSA A2 Flash Hider.Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer.Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside.Build Kit: A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol. Features Mil-Spec Fire Control Group, Classic A2 Grip, and a USGI Classic Trigger Guard. Also includes SB Tactical SBA3 Adjustable Pistol Brace, castle nut, latch plate, carbine buffer spring, 5 positioning mil-spec buffer tube, and standard carbine buffer.